GENUS PINtJS. 95 



species, and form a speedy means of identification. They 

 persist for many years, and being arranged in whorls around 

 both stem and branches, have a very unusual and curious 

 appearance. The leaves are fully 4 inches long, bluntly 

 pointed, and slightly serrated on the margins. For planting 

 on rocky ground or even on poor sandy soils, this pine is 

 valuable, but it wants protection from rough winds, as it is 

 apt to get uprooted, the head being heavy in proportion to 

 the height and root spread. 



P. OOCa.rpa., Schiede. {Synonyms: — P. oocarpoides, 

 Gordon ; P. Skinneri, hort.) Mexico, Guatemala. 1838. — 

 This is a beautiful species, much after another Mexican pine, 

 P. Montczumcc, but unfortunately it is not sufficiently hardy to 

 withstand the rigours of our climate, unless in the south and 

 west, and where good specimens of both are occasionally to 

 be met with. The present species is of rather broadly 

 pyramidal habit of growth, with the top wide, owing to many 

 leading growths shooting up, and it is well branched down to 

 the ground. The leaves are five in a sheath, rather harsh and 

 rigid, and of a pleasing but not very bright shade of green. 

 The cones are small and oval in shape. 



P. palustris, Miller. {Synonym: — P. australis, Mich- 

 aux.) Southern States of U.S.A. and Texas. — This is the 

 species, the timber of which, under the name of " pitch pine," 

 is so largely exported to this country. Unfortunately it is 

 not a suitable tree for cultivating in these islands. It is of 

 upright growth, but straggling and meagre in appearance, 

 with long deep-green leaves, arranged three in a sheath. 

 Planted in dampish, well-drained loam, and under unusually 

 favourable circumstances, a few specimens have done fairly 

 well both at Penrhyn Castle and Woburn Abbey. 



P. parviflora, Siebold and Zuccarini. Japan. 1861. — 

 Where a neat growing and well furnished conifer of medium 

 size is required, the present species will be found one of the 

 best. All over the British Isles it does well, and has in many 

 places already attained to goodly proportions, and produced 

 both male and female cones in abundance. The habit of 



